public class PetTest {
    public static void main(String[] args) {
        Dog dog = new Dog("旺财", "哈士奇", "20kg");
        dog.introduce();
        dog.zhua();
        Qie qie = new Qie("腾讯", "帝王企鹅", "10kg");
        qie.introduce();
        qie.swim();
    }
}